A nonmetallic circular item with an aperature, having a solid round cross-section. They are used primarily for sealing. For items with other than round cross section, see packing,preformed. For noncircular items with a round cross-section, see seal,nonmetallic round section and rubber,round section.
NSN 4140-01-407-0437
NSN 5965-01-101-2187
NSN 6135-00-178-9527
NSN 5855-00-532-0025
NSN 4140-01-553-4248
NSN 5910-00-234-6786
NSN 5985-00-766-1970
NSN 6650-01-633-9147
NSN 5965-01-449-1101
NSN 5990-00-084-3776
NSN 5920-00-736-7882
NSN 5999-00-203-1202